CommandFlow — Productivity Hub

Self-hosted productivity platform (Pomodoro, tasks, scheduler, team collab) built as an installable PWA. Deployed on Ubuntu VPS with Gunicorn, Nginx, and automated Certbot SSL.

FlaskSQLAlchemySQLitePWANginxGunicornLinux VPSCertbot

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TL;DR

Self-hosted productivity platform (Pomodoro, tasks, scheduler, team collab) built as an installable PWA. Deployed on Ubuntu VPS with Gunicorn, Nginx, and automated Certbot SSL.

The Problem

Productivity tools are fragmented — one app for tasks, another for timers, another for scheduling. Students and small teams need an integrated solution without subscription costs.

My Solution

A full-stack productivity platform combining Pomodoro timer, task management, daily scheduler, and team collaboration in a single installable PWA.

Technical Architecture

Backend

Flask with SQLAlchemy ORM

SQLite for lightweight, self-hosted database

Team collaboration via invite codes

Bcrypt password hashing with hardened session cookies (HttpOnly, SameSite)

PWA Features

Service Workers for offline access

Installable on mobile and desktop

Push notifications for Pomodoro breaks

Deployment

Ubuntu VPS with systemd service management

Gunicorn WSGI server with multiple workers

Nginx reverse proxy routing multiple apps on one server

Certbot automated SSL certificate renewal via Let's Encrypt

Key Metrics

Fully installable PWA with offline support

Self-hosted on personal VPS (not platform-dependent)

Automated SSL renewal — zero manual intervention

Like what you see?

I can build systems like this for your team. Let's discuss how my skills match your engineering needs.

Let's Talk Email Me Directly

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